JP4078802B2 - 情報処理システム、情報処理方法、情報処理装置、および情報記録媒体、並びにプログラム記録媒体 - Google Patents

情報処理システム、情報処理方法、情報処理装置、および情報記録媒体、並びにプログラム記録媒体 Download PDF

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Publication number
JP4078802B2
JP4078802B2 JP2000395105A JP2000395105A JP4078802B2 JP 4078802 B2 JP4078802 B2 JP 4078802B2 JP 2000395105 A JP2000395105 A JP 2000395105A JP 2000395105 A JP2000395105 A JP 2000395105A JP 4078802 B2 JP4078802 B2 JP 4078802B2
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Japan
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ekb
key
tree
category
sub
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Expired - Fee Related
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JP2000395105A
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English (en)
Japanese (ja)
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JP2002198948A (ja
Inventor
智之 浅野
義知 大澤
丈於 大石
隆二 石黒
隆太 瀧
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Sony Corp
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Sony Corp
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Publication date
Priority to JP2000395105A priority Critical patent/JP4078802B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Priority to CNB018086594A priority patent/CN1203639C/zh
Priority to PCT/JP2001/011235 priority patent/WO2002052779A1/ja
Priority to EP01272279A priority patent/EP1253738B1/de
Priority to DE60130430T priority patent/DE60130430T2/de
Priority to AT01272279T priority patent/ATE373357T1/de
Priority to US10/204,514 priority patent/US6911974B2/en
Priority to KR1020027011168A priority patent/KR100859623B1/ko
Publication of JP2002198948A publication Critical patent/JP2002198948A/ja
Priority to HK03109356A priority patent/HK1058588A1/xx
Priority to US11/132,664 priority patent/US7405731B2/en
Application granted granted Critical
Publication of JP4078802B2 publication Critical patent/JP4078802B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/107—License processing; Key processing
    • G06F21/1076—Revocation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H04L9/0833—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
    • H04L9/0836—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key using tree structure or hierarchical structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/107—License processing; Key processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2107—File encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Technology Law (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Storage Device Security (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Hardware Redundancy (AREA)
  • Debugging And Monitoring (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
JP2000395105A 2000-12-26 2000-12-26 情報処理システム、情報処理方法、情報処理装置、および情報記録媒体、並びにプログラム記録媒体 Expired - Fee Related JP4078802B2 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP2000395105A JP4078802B2 (ja) 2000-12-26 2000-12-26 情報処理システム、情報処理方法、情報処理装置、および情報記録媒体、並びにプログラム記録媒体
KR1020027011168A KR100859623B1 (ko) 2000-12-26 2001-12-21 정보 처리 시스템 및 방법
EP01272279A EP1253738B1 (de) 2000-12-26 2001-12-21 Verfahren und vorrichtung zur informationsverarbeitung
DE60130430T DE60130430T2 (de) 2000-12-26 2001-12-21 Verfahren und vorrichtung zur informationsverarbeitung
AT01272279T ATE373357T1 (de) 2000-12-26 2001-12-21 Verfahren und vorrichtung zur informationsverarbeitung
US10/204,514 US6911974B2 (en) 2000-12-26 2001-12-21 Information processing system and method
CNB018086594A CN1203639C (zh) 2000-12-26 2001-12-21 信息处理***及方法
PCT/JP2001/011235 WO2002052779A1 (fr) 2000-12-26 2001-12-21 Systeme et procede de traitement d'informations
HK03109356A HK1058588A1 (en) 2000-12-26 2003-12-23 Information processing system and method.
US11/132,664 US7405731B2 (en) 2000-12-26 2005-05-19 Information processing system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000395105A JP4078802B2 (ja) 2000-12-26 2000-12-26 情報処理システム、情報処理方法、情報処理装置、および情報記録媒体、並びにプログラム記録媒体

Publications (2)

Publication Number Publication Date
JP2002198948A JP2002198948A (ja) 2002-07-12
JP4078802B2 true JP4078802B2 (ja) 2008-04-23

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JP2000395105A Expired - Fee Related JP4078802B2 (ja) 2000-12-26 2000-12-26 情報処理システム、情報処理方法、情報処理装置、および情報記録媒体、並びにプログラム記録媒体

Country Status (9)

Country Link
US (2) US6911974B2 (de)
EP (1) EP1253738B1 (de)
JP (1) JP4078802B2 (de)
KR (1) KR100859623B1 (de)
CN (1) CN1203639C (de)
AT (1) ATE373357T1 (de)
DE (1) DE60130430T2 (de)
HK (1) HK1058588A1 (de)
WO (1) WO2002052779A1 (de)

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Also Published As

Publication number Publication date
DE60130430T2 (de) 2008-06-12
DE60130430D1 (de) 2007-10-25
WO2002052779A1 (fr) 2002-07-04
HK1058588A1 (en) 2004-05-21
KR20030019316A (ko) 2003-03-06
CN1426643A (zh) 2003-06-25
EP1253738B1 (de) 2007-09-12
US6911974B2 (en) 2005-06-28
US7405731B2 (en) 2008-07-29
JP2002198948A (ja) 2002-07-12
US20050228809A1 (en) 2005-10-13
CN1203639C (zh) 2005-05-25
EP1253738A4 (de) 2005-02-02
ATE373357T1 (de) 2007-09-15
US20030140227A1 (en) 2003-07-24
EP1253738A1 (de) 2002-10-30
KR100859623B1 (ko) 2008-09-23

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